tests/stxdw.data

-- asm
mov r2, 0x88776655
lsh r2, 32
or r2, 0x44332211
stxdw [r1+2], r2
ldxdw r0, [r1+2]
exit
-- mem
aa bb ff ff ff ff ff ff ff ff cc dd
-- result
0x8877665544332211